Arnold, Johannes und Ansar, Asif und Ruckdäschel, Robert und Henne, Rudolf und Maier, Uwe und Grünling, Hermann W. (2011) Vacuum plasma sprayed insulating layers suitable for brazing in high temperature fuel cells. In: Abstracts and manuscripts of the ITSC- Conference 2011 in Hamburg, 276, Seiten 143-148. DVS Media GmbH, Düsseldorf. ITSC 2011, 2011-09-27 - 2011-09-29, Hamburg, Germany. ISBN 978-3-87155-268-7.
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Kurzfassung
SOFCs for mobile applications require short starting times and capability of withstanding several and severe cycles. For such applications metallic cassette type cells with low weight and thermal capacity are beneficial where the active cell part is set in interconnects consisting of two sheets of ferritic steel. These cells are stacked serially to get higher voltage and power. This approach needs interconnect sheets that are electrically insulated from each other to prevent electrical short circuit. The technology discussed here is to use brazed metals, as sealants, and ceramic layers, as electrical insulators, which are vacuum plasma sprayed on the cassette rims. For reliable insulating layers, a variety of deposits were developed, starting from cermet-spinel multilayers with various compositions and constituents, where reactive metals (such as Ti, Zr) were part of the coatings, to pure ceramic layers. The qualities and characteristics of these coatings were investigated which included electric insulation at room temperature and at 800 °C (SOFC operating temperature), wettability of different brazes towards these deposits, phase stability and peeling strength. The single steps of development, characteristics of the insulating layers for SOFCs as well as some challenges that have to be taken into account in the process are described.
elib-URL des Eintrags: | https://elib.dlr.de/71140/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||||||||||||||
Titel: | Vacuum plasma sprayed insulating layers suitable for brazing in high temperature fuel cells | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 27 September 2011 | ||||||||||||||||||||||||||||
Erschienen in: | Abstracts and manuscripts of the ITSC- Conference 2011 in Hamburg | ||||||||||||||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
Band: | 276 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 143-148 | ||||||||||||||||||||||||||||
Verlag: | DVS Media GmbH, Düsseldorf | ||||||||||||||||||||||||||||
Name der Reihe: | DVS-Berichte | ||||||||||||||||||||||||||||
ISBN: | 978-3-87155-268-7 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | SOFC, interconnect sheets, electrical insulation, sealants, ceramic layers, vacuum plasma sprayed, cermets, joining, reactive air brazing. | ||||||||||||||||||||||||||||
Veranstaltungstitel: | ITSC 2011 | ||||||||||||||||||||||||||||
Veranstaltungsort: | Hamburg, Germany | ||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 27 September 2011 | ||||||||||||||||||||||||||||
Veranstaltungsende: | 29 September 2011 | ||||||||||||||||||||||||||||
Veranstalter : | Deutscher Verband für Schweißtechnik (DVS), TSS, iiw | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||
HGF - Programm: | Rationelle Energieumwandlung (alt) | ||||||||||||||||||||||||||||
HGF - Programmthema: | E EV - Energieverfahrenstechnik (alt) | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E EV - Energieverfahrenstechnik | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Elektrochemische Prozesse (alt) | ||||||||||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Elektrochemische Energietechnik | ||||||||||||||||||||||||||||
Hinterlegt von: | Arnold, Dr.-Ing. Johannes | ||||||||||||||||||||||||||||
Hinterlegt am: | 10 Okt 2011 10:50 | ||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 19:36 |
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